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SOVA2 [1]
4 years ago
12

Which of the following statements about gel electrophoresis is correct?a. Longer DNA fragments migrate farther than shorter frag

mentsb. Migration distance is inversely proportional to the fragment sizec. Positively charged DNA migrates more rapidly than negatively charged DNAd. None of these statements are true
Biology
1 answer:
hram777 [196]4 years ago
3 0

Migration distance is inversely proportional to the fragment size.

<h3><u>Explanation</u>:</h3>

The gel electrophoresis is the process of separation of the DNA fragments after the action of restriction endonuclease action on enzyme. The gel electrophoresis is carried out after coating the DNA fragments with suitable salts and placing them on the side of the electrophoresis table.

The electrophoresis is carried through agar agar gel which has a network inside it.  The smaller DNA fragments will pass more through the gel whereas the larger fragments will be left behind.

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Explanation:

Hope this helped Mark BRAINLEST!!!!

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Use this information to answer questions 6 - 11. Your original population of
grigory [225]

Answer:

1. How did the tidal wave  affect the predicted frequencies of the alleles in the population?

No changes

2. What is the frequency of the recessive allele?

q= 0.6

Explanation:

If we assume that all individuals were equally likely to be wiped out, that means the frequency/ratio of the gene and genotype of the population will not change. The tidal wave killing 100 out of 200, so it simply makes the population become half of it used to be.  

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8 0
3 years ago
Meiosis is called reduction division. When does the reduction in chromosome number occur?
aniked [119]

The reduction in chromosome number occurs during <u>meiosis I.</u>

Chromosomes are long molecules of DNA that contain some or all of an organism's genetic material. In most chromosomes, very long, thin strands of DNA are coated with packaging proteins. In eukaryotic cells, the histones are the most important of these proteins.

Within the nucleus of all cells, DNA molecules are packaged into thread-like structures called chromosomes. Each chromosome is made up of DNA tightly wrapped many times around proteins called histones that support its structure.

Another type of cell division, meiosis, ensures that humans have the same number of chromosomes from generation to generation. This is a two-step process in which the number of chromosomes is halved from 46 to 23 to form sperm and eggs.

Learn more about chromosomes here:-brainly.com/question/11912112

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7 0
1 year ago
The blood test used to measure the volume of erythrocytes is
SVEN [57.7K]

Answer:  " erythrocyte sedimentation rate (ESR) " .

______________________________________________

Hope this helps!

  Best of luck!

______________________________________________

8 0
3 years ago
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